203093678849 has 2 divisors, whose sum is σ = 203093678850. Its totient is φ = 203093678848.

The previous prime is 203093678743. The next prime is 203093678891. The reversal of 203093678849 is 948876390302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187510650625 + 15583028224 = 433025^2 + 124832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203093678849 is a prime.

It is not a weakly prime, because it can be changed into another prime (203093672849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101546839424 + 101546839425.

It is an arithmetic number, because the mean of its divisors is an integer number (101546839425).

Almost surely, 2^203093678849 is an apocalyptic number.

It is an amenable number.

203093678849 is a deficient number, since it is larger than the sum of its proper divisors (1).

203093678849 is an equidigital number, since it uses as much as digits as its factorization.

203093678849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 203093678849 in words is "two hundred three billion, ninety-three million, six hundred seventy-eight thousand, eight hundred forty-nine".